03212+2109 COU 259 (Tau Ari)

 
 
03h 21m 13.63s +21 08' 49.5" P.A. 217 sep 0.9 mag 5.34,8.09 Sp B5IV dist. 156.01 pc (508.9 l.y.)
 
 
Coord 2000
03212+2109
Discov num
COU 259
Comp
Coord arcsec 2000
03 21 13.63 +21 08 49.5
Date first
1968
Date last
2013
Obs
26
Pa first
246
Pa last
217
P.A. Now (θ)
217°
Sep first
0.7
Sep last
0.9
Sep. Now (ρ)
0.9"
Mag pri
5.34
Mag sec
8.09
delta mag (ΔM)
2.75
Spectral class
B5IV (blue-white)
Pri motion ra
+026
Sec motion ra
+026
Pri motion dec
-025
Sec motion dec
-025
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Tau Ari
Constellation
Aries
SAO
75886
HIP
15627
Tycho2
1245-01184-1
HD
20756
HR
1005
GC
4007
BD
BD+20 543
Bayer
Tau Arietis
Bayer name
Tau Ari
Flamsteed
61 Arietis
Flamsteed name
61 Ari
Distance
156.01
Distance ly
508.9
last precise pa
216.5
last precise sep
0.91
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03212+2109 COU 259 2005 25 220 0.9 5.34 8.09 B5IV N D 032113.63+210849.5
03212+2109 COU 259 2013 26 217 0.9 5.34 8.09 B5IV N 032113.63+210849.5

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